ADM1192 Analog Devices, ADM1192 Datasheet
ADM1192
Specifications of ADM1192
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ADM1192 Summary of contents
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... APPLICATIONS Power monitoring/power budgeting Central office equipment Telecommunications and data communications equipment PCs/servers GENERAL DESCRIPTION The ADM1192 is an integrated current sense amplifier that offers digital current and voltage monitoring via an on-chip 12-bit analog-to-digital converter (ADC), communicated 2 through an I C® interface. ...
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... Changes to Write Extended Command Byte Section................ 13 Changes to Figure 23...................................................................... 13 Changes to Table 9 and Table 11................................................... 13 Changes to Converting ADC Codes to Voltage and Current Readings Section......................................................... 14 Changes to Figure 27...................................................................... 16 Identifying the ADM1192 on the I General I Write and Read Operations........................................................... 12 Quick Command........................................................................ 12 Write Command Byte ................................................................ 12 Write Extended Command Byte .............................................. 13 Read Voltage and/or Current Data Bytes ...
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... V 26.52 V 0.8 V −40 −22 μA 1 μA 150 μs −1 +1 μA Rev Page ADM1192 Conditions VCC rising SENSE SENSE SENSE V = 12.5 mV SENSE SENSE SENSE SENSE V = 12.5 mV SENSE SENSE SENSE ...
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... ADM1192 Parameter SETV PIN Overcurrent Trip Threshold Overcurrent Trip Gain, V /(V − V SETV CC SENSE Input Current, I SETVLEAK Glitch Filter, t SETVGLITCH TIMER PIN Pull-Up Current (Overcurrent Fault), I TIMERUPOC Pull-Down Current, I TIMERDN Pin Threshold High, V TIMERH ALERT PIN Output Low Voltage, V ALERTOL Input Current, I ...
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... Table 3. Thermal Resistance −0 Package Type −0 10-Lead MSOP ESD CAUTION −0 −0 −65°C to +125°C −40°C to +85°C 300°C 150°C Rev Page ADM1192 θ Unit JA 137.5 °C/W ...
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... VCC Positive Supply Input Pin. The operating supply voltage range is 3. undervoltage lockout (UVLO) circuit resets the ADM1192 when a low supply voltage is detected. 2 SENSE Current Sense Input Pin. A sense resistor between the VCC pin and the SENSE pin generates a voltage across a sense resistor ...
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... CODE 1000 900 800 700 600 500 400 300 200 100 0 779 780 781 782 CODE 1000 900 800 700 600 500 400 300 200 100 0 3078 3079 3080 3081 CODE ADM1192 2050 783 3082 ...
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... ADM1192 –1 –2 –3 –4 0 500 1000 1500 2000 2500 CODE Figure 10. INL for ADC –1 –2 –3 –4 0 500 1000 1500 2000 2500 CODE Figure 11. DNL for ADC 100 0.2 0.4 0.6 0.8 1.0 1.2 V (V) SETV Figure 12 ...
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... HIGH 1.2 1.0 0.8 0.6 0.4 0 (V) CC Figure 16. Timer Threshold vs. Supply Voltage 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 –40 Rev Page ADM1192 HIGH – TEMPERATURE (°C) Figure 17. Timer Threshold vs. Temperature 80 ...
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... IDENTIFYING THE ADM1192 ON THE I The ADM1192 has a 7-bit serial bus slave address. When the device powers up, it does so with a default serial bus address. The five MSBs of the address are set to 01011; the two LSBs are determined by the state of the ADR pin ...
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... SLAVE DATA BYTE ACKNOWLEDGE BY MASTER 2 Figure 19. General I C Read Timing Diagram HIGH t SU;DAT S Figure 20. Serial Bus Timing Diagram Rev Page ADM1192 ACKNOWLEDGE BY SLAVE FRAME ACKNOWLEDGE BY SLAVE FRAME N DATA BYTE ...
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... C6 0 STATUS_RD Status Read. When this bit is set, the data byte read back from the ADM1192 is the status byte. This contains the status of the device alerts. See Table 15 for full details of the status byte. WRITE COMMAND BYTE In the write command byte operation, the master device sends a command byte to the slave device, as follows: 1 ...
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... Table 9, Table 10, and Table 11 provide the details of each extended register. Table 8. Extended Register Addresses Rev Page ADM1192 EXTENDED REGISTER COMMAND ADDRESS BYTE A1 A0 Extended Register 0 1 ALERT_EN 1 0 ALERT_TH 1 1 CONTROL ...
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... I11 I10 I9 I8 MSBs 3 LSBs Voltage Readback The ADM1192 digitizes voltage only. Two bytes are read back in the format shown in Table 13. Table 13. Voltage Only Readback Format Byte Contents Voltage MSBs V11 V10 Voltage LSBs ...
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... An overcurrent condition has caused the ALERT block to latch a fault, and the ALERT output has asserted. Cleared by writing to Bit 4 of the ALERT_EN register. 4 OFF_STATUS Set writing to the SWOFF bit of the CONTROL register. 5 OFF_ALERT An alert has been caused by the SWOFF bit. Cleared by writing to Bit 4 of the ALERT_EN register. Rev Page ADM1192 ...
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... GATE to source ensures that the P-channel FET GATE is pulled up and the device held off as soon as power is applied. When the ADM1192 powers up, the GATE is pulled low by the ALERT output. A capacitor on the TIMER pin determines the slew rate of the GATE pin at startup. Note that if a current fault occurs during the operation, the ALERT output asserts high, turning off the P-channel FET ...
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... Kelvin sense connection. This type of connection separates the current path through the resistor and the voltage drop across the resistor. Figure 30 shows the correct way to connect the sense resistor between the VCC pin and the SENSE pin of the ADM1192. SENSE RESISTOR CURRENT FLOW FROM ...
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... ADM1192 OUTLINE DIMENSIONS ORDERING GUIDE Model Temperature Range 1 ADM1192-1ARMZ-R7 −40°C to +85°C EVAL-ADM1192EBZ RoHS Compliant Part. 3.10 3.00 2. 5.15 3.10 4.90 3.00 4.65 2. PIN 1 0.50 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.33 SEATING 0.23 0.05 PLANE 0.17 0.08 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-BA Figure 31. 10-Lead Mini Small Outline Package [MSOP] (RM-10) Dimensions shown in millimeters Package Description ...
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... NOTES Rev Page ADM1192 ...
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... ADM1192 NOTES 2 Purchase of licensed I C components of Analog Devices, Inc., or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Patent Rights to use these components system, provided that the system conforms to the I ©2006–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...